Sanding device of traction electric locomotive for coal mine

By incorporating a crushing box and an air pump into the sand spreading device, the problem of blockage caused by sand agglomeration was solved, achieving uniform sand spreading and safe operation of the locomotive.

CN224104062UActive Publication Date: 2026-04-10ZAOZHUANG MINING GRP GAOZHUANG COAL IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In humid environments, sand spreading devices in coal mine tunnels are prone to sand clumping, leading to blockages and uneven sand spreading, which affects the adhesion coefficient and safety of locomotives.

Method used

A sand spreading device including a crushing box and an air pump was designed. The crushing box is equipped with a rotating crushing disc and blades to break up clumps of sand, and the air pump provides high-pressure gas to clear the discharge pipe and ensure that the sand is spread evenly.

Benefits of technology

It effectively breaks up clumps of sand, ensures uniform sand distribution, improves the adhesion coefficient of the locomotive, reduces braking distance, and prevents runaway accidents.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a coal mine traction electric locomotive sanding device which comprises a tank body fixedly installed at the front end of the running direction of an electric locomotive and a discharging pipe arranged at the inner bottom of the tank body in a communicated mode, the discharging pipe is composed of a vertical section and an inclined section integrally formed with the vertical section, and the tail end of the discharging pipe corresponds to the position of a track. A smashing box is fixedly connected to the inclined section of the discharging pipe, and two smashing cavities which are symmetrically distributed are formed in the smashing box. According to the utility model, the motor is started, the corresponding gear is driven to rotate through the rotating shaft, the other meshed gear also rotates synchronously, at the moment, the two crushing discs rotate synchronously in opposite directions, and when caked sand passes through the space between the two crushing discs, the caked sand is scattered by the blades arranged on the surfaces of the crushing discs; therefore, the discharged sand falls on the track, good friction force is generated between the wheels and the track, and the braking distance is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sanding device technical field, concretely is traction electric locomotive sanding device for coal mine. BACKGROUND

[0002] Electric locomotive is a kind of traction equipment of coal mine transportation, power is driven wheel rotation using traction motor, by the friction between wheel and rail surface, make electric locomotive run on track;In coal mine tunnel, in order to ensure the adhesion coefficient of electric locomotive, avoid the accident such as car sliding, sanding device is often used to sand on track in the process of driving, increase friction, reduce braking distance;Sanding device is usually arranged at the front end of electric locomotive running direction.

[0003] In coal mine tunnel, located in humid environment, moisture in air penetrates into sand body, sand in the interior of sanding device is prone to caking phenomenon;Or residual sand amount in the interior of sanding device is retained due to gravity, sand is accumulated and retained, gradually compacts and caking after being pressed;The above circumstances will block sanding pipeline, hinder normal conveying of sand, so that sanding device cannot uniformly sand sand on track, therefore, it is urgently needed to solve. CONTENT OF THE UTILITY MODEL

[0004] (1) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides traction electric locomotive sanding device for coal mine, solves the problems proposed in the above background art.

[0006] (2) technical scheme

[0007] To realize the above purpose, the utility model is realized by the following technical scheme: traction electric locomotive sanding device for coal mine, including the tank body of fixed installation in the front end of electric locomotive running direction, the discharge pipe of communication setting in the bottom of tank body, the discharge pipe is by vertical section and the inclination of integral molding with vertical section, the end of discharge pipe corresponds with the position of track, the inclination section of discharge pipe is fixedly connected with the pulverizing box, the pulverizing box has two symmetrical distribution pulverizing cavities, two pulverizing cavities are communicated with discharge pipe and are distributed on both sides of discharge pipe, the inner bottom wall of pulverizing cavity is rotatably inserted with the rotating shaft, the rotating shaft is coaxially fixedly connected with the pulverizing disc, the circumferential surface of pulverizing disc has a plurality of evenly distributed blades.

[0008] Preferably, the top of pulverizing box is fixedly connected with protective cover, the protective cover is located above the outside of discharge pipe, the upper end of rotating shaft penetrates into protective cover and is fixedly connected with gear, two gears are meshingly arranged, the top of protective cover is fixedly installed with motor, and the output end of motor is fixedly connected with one rotating shaft through shaft coupling.

[0009] Preferably, the tank top is provided with an inlet, and the tank top is further provided with an inlet sealing cover rotatably arranged through a hinge, and the bottom of the inlet sealing cover is inserted into the inlet when the inlet sealing cover is rotated to a horizontal state.

[0010] Preferably, the tank side wall is fixedly provided with an air pump, and the air outlet end of the air pump is fixedly connected with an air guide pipe, and the lower end of the air guide pipe is in communication with the vertical section of the discharge pipe.

[0011] Preferably, the vertical section of the discharge pipe is provided with an electromagnetic valve for controlling the discharge of the discharge pipe.

[0012] Preferably, the circumferential side wall of the tank is fixedly connected with two mounting plates, and the mounting plates are provided with mounting holes.

[0013] (Three) beneficial effects

[0014] The utility model provides a coal mine traction electric locomotive sanding device has the following beneficial effects:

[0015] 1. In the utility model, the motor is started, the corresponding gear is rotated through the rotating shaft, and the other meshing gear also rotates synchronously, at this time, the two crushing discs rotate synchronously in opposite directions, when the caked sand passes between the two crushing discs, the blades on the surface of the crushing disc disperse the caked sand into fine particles, so that the discharged sand falls on the track, and good friction is generated between the wheel and the track, and the braking distance is reduced.

[0016] 2. In the utility model, the air pump is started, high-pressure gas is generated, the high-pressure gas enters the discharge pipe through the air guide pipe, the sand is dredged, the sand flows to the discharge outlet, the transmission of the sand is realized, and the discharge work of the discharge pipe is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the coal mine traction electric locomotive sanding device provided by the utility model;

[0018] Figure 2 It is a rear view of the coal mine traction electric locomotive sanding device provided by the utility model;

[0019] Figure 3 It is a cross-sectional view of the coal mine traction electric locomotive sanding device provided by the utility model;

[0020] Figure 4 It is a first perspective view of the coal mine traction electric locomotive sanding device provided by the utility model;

[0021] Figure 5The utility model provides a second visual angle plan view structure diagram of coal mine traction motor car sanding device.

[0022] In the figure: 1, tank body; 101, inlet; 2, discharge pipe; 3, air pump; 4, gas guide pipe; 5, electromagnetic valve; 6, mounting plate; 7, inlet sealing cover; 8, crushing box; 801, crushing cavity; 9, crushing disc; 10, rotating shaft; 11, gear; 12, protective cover; 13, motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Please refer to Figures 1 to 5 The utility model provides a technical scheme: coal mine traction motor car sanding device, including fixed installation in the tank body 1 of motor car running direction front end, the discharge pipe 2 of intercommunication setting in the bottom of tank body 1, the discharge pipe 2 is by vertical section and with vertical section integral forming's inclination, the end of discharge pipe 2 corresponds with track position, the inclined section of discharge pipe 2 is fixedly connected with crushing box 8, and crushing box 8 has two symmetrical distribution crushing cavities 801 inside, two crushing cavities 801 are communicated with discharge pipe 2 and are distributed on both sides of discharge pipe 2, and rotating shaft 10 is rotatably inserted in the inner bottom wall of crushing cavity 801, and crushing disc 9 is coaxially fixedly connected with rotating shaft 10, and a plurality of uniformly distributed blades are formed on the circumferential surface of crushing disc 9.

[0025] The following will be specifically said how to scatter the caked sand: two crushing discs 9 can rotate in opposite directions synchronously, when the caked sand passes between two crushing discs 9, the blades arranged on the surface of crushing disc 9 scatter the caked sand into fine particles, so that the discharged sand falls on the track, and good friction force is generated between the wheel and the track, reducing the braking distance.

[0026] In addition, the above-mentioned blades can be arranged in multiple rows on the surface of the crushing disc 9, which can increase the cutting contact area and better scatter the sand.

[0027] In order to synchronously rotate and drive the two gears 11, a protective cover 12 is fixedly connected to the top of the crushing box 8, the protective cover 12 is located above and outside the discharge pipe 2, the upper end of the rotating shaft 10 penetrates into the protective cover 12 and is fixedly connected with the gear 11, the two gears 11 are meshingly arranged, the motor 13 is fixedly installed on the top of the protective cover 12, and the output end of the motor 13 is fixedly connected with one of the rotating shafts 10 through a shaft coupling.

[0028] By starting the motor 13, the corresponding gear 11 is driven to rotate by the rotating shaft 10, and the other meshing gear 11 also rotates synchronously at this time. The two crushing discs 9 can rotate in opposite directions synchronously.

[0029] In this scheme, the top of the tank body 1 is provided with a feeding port 101, and the top of the tank body 1 is also provided with a feeding sealing cover 7 through a hinge. When the feeding sealing cover 7 is rotated to the horizontal state, the bottom of the feeding sealing cover 7 is inserted into the feeding port 101.

[0030] When it is necessary to add material to the inside of the tank body 1, the feeding sealing cover 7 is rotated to an inclined state, so that the feeding port 101 is opened, and then the sand is added to the inside of the tank body 1 through the feeding port 101. After completion, the feeding sealing cover 7 is rotated again to the horizontal state, so that the bottom of the feeding sealing cover 7 is inserted into the feeding port 101, and a rubber ring can be provided at the connection between the feeding sealing cover 7 and the feeding port 101 to improve the sealing effect and prevent water vapor in the air from entering the tank body 1.

[0031] Referring to Figure 1 and Figure 3 , the sidewall of the tank body 1 is fixedly installed with an air pump 3, and the air outlet end of the air pump 3 is fixedly connected with an air guide pipe 4. The lower end of the air guide pipe 4 is in communication with the vertical section of the discharging pipe 2.

[0032] By starting the air pump 3, high-pressure gas is generated, which enters the discharging pipe 2 through the air guide pipe 4 to dredge the sand, so that the sand flows to the discharging outlet, realizing the transmission of the sand and facilitating the discharging work of the discharging pipe 2.

[0033] Referring to Figure 1 and Figure 3 , the vertical section of the discharging pipe 2 is provided with an electromagnetic valve 5 for controlling the discharging of the discharging pipe 2.

[0034] When the electromagnetic valve 5 is opened, the sand in the tank body 1 can smoothly pass through the discharging pipe 2 and be discharged from the discharging end of the discharging pipe 2, and the sand is discharged onto the track.

[0035] It should be noted that the electromagnetic valve 5, the air pump 3 and the motor 13 are connected with an external power supply, which is a prior art and will not be described in detail.

[0036] The circumferential sidewall of the tank body 1 is fixedly connected with two mounting plates 6, and mounting holes are formed in the mounting plates 6.

[0037] Corresponding screw holes are also formed on the surface of the electric locomotive, and fasteners are used to pass through the mounting holes and be screwed into the screw holes, so as to realize the purpose of fixing the device on the electric locomotive. Since the track is usually two, the sanding device is usually used in pairs to ensure uniform adhesion on both sides of the track.

[0038] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sanding device for a coal mine haulage electric locomotive, characterized in that: The utility model relates to a motor car's tank body of fixed installation in the front end of running direction, the tank body (1) of communication setting in the bottom of tank body (1) is discharged, the discharge pipe (2) is by vertical section and the inclination of integral molding with vertical section, the end of discharge pipe (2) corresponds with the track position, the oblique section of discharge pipe (2) is fixedly connected with the pulverization box (8), the pulverization box (8) has two pulverization cavities (801) of symmetrical distribution inside, two pulverization cavities (801) are communicated with discharge pipe (2) and are arranged in the both sides of discharge pipe (2), the bottom wall rotation of pulverization cavity (801) is inserted with the shaft (10), the shaft (10) is coaxially fixedly connected with the pulverization disc (9), the circumferential surface of pulverization disc (9) has a plurality of evenly distributed blades.

2. The coal mine tractor vehicle sanding device of claim 1, wherein: The top of pulverization box (8) is fixedly connected with the protective cover (12), the protective cover (12) is located above the outside of discharge pipe (2), the upper end of shaft (10) penetrates into the protective cover (12) and is fixedly connected with gear (11), two gear (11) are meshed, the top of protective cover (12) is fixedly installed with motor (13), and the output end of motor (13) is fixedly connected with one of shaft (10) through the shaft coupling.

3. The coal mine tractor vehicle sanding device of claim 1, wherein: The top of tank body (1) is provided with inlet (101), and the top of tank body (1) is also provided with a feeding sealing cover (7) through the hinge rotation, when the feeding sealing cover (7) is rotated to the horizontal state, the bottom of feeding sealing cover (7) is inserted into inlet (101).

4. The coal mine tractor vehicle sanding device of claim 1, wherein: The sidewall of tank body (1) is fixedly installed with air pump (3), and the air outlet end of air pump (3) is fixedly connected with air duct (4), and the lower end of air duct (4) is communicated with the vertical section of discharge pipe (2).

5. The coal mine tractor vehicle sanding device of claim 1, wherein: The vertical section of discharge pipe (2) is provided with electromagnetic valve (5), and the electromagnetic valve (5) is used for controlling the discharge of discharge pipe (2).

6. The coal mine tractor vehicle sanding device of claim 1, wherein: The circumferential sidewall of tank body (1) is fixedly connected with two mounting plates (6), and the mounting hole is formed in mounting plate (6).